
This episode covers the violent crimes of Joshua Dewayne Gardner, including his first murder at age 24 and a subsequent murder in prison. Key discussions include Gardner's troubled childhood, his drug use, and the brutal murder of Preston Talley.
Joshua Gardner, high on drugs, committed his first murder for just $20. Witnesses describe the horrific scene, with one stating that Gardner's actions were premeditated and heinous.
In prison, Gardner's violent tendencies continued, leading to the murder of his cellmate, Jose Aparicio-Becerra. The episode details the brutal beating and the chaotic aftermath, including Gardner's chilling confession.
Experts discuss Gardner's background, including his traumatic childhood and mental health issues, which contributed to his violent behavior. The episode also highlights the role of drugs in exacerbating his aggression.
Ultimately, Gardner was sentenced to life without parole for both murders, with discussions surrounding the implications of his actions and the potential for future violence.
Joshua Gardner's violent history leads to two murders, revealing a pattern of aggression fueled by drugs and a troubled upbringing.

This episode stands out for the following:
This isn't just a murder. This is a heinous murder.Joshua Gardner’s Dark World | World’s Most Evil Prisoners
Gardner wanted to hurt him, make him suffer.Joshua Gardner’s Dark World | World’s Most Evil Prisoners
Now he is.Joshua Gardner’s Dark World | World’s Most Evil Prisoners
He just acted like he accepted it.Joshua Gardner’s Dark World | World’s Most Evil Prisoners
It seemed to me to be premeditated, cold, calculated, heinous, atrocious and cruel.Joshua Gardner’s Dark World | World’s Most Evil Prisoners
It just was totally unnecessary and random.Joshua Gardner’s Dark World | World’s Most Evil Prisoners